code: def test_rfo_rellocation():
      def square(x):
          return np.sum(x**2)
  
      search_space = search.SearchSpace(
          n_agents=10,
          n_variables=2,
          lower_bound=[0, 0],
          upper_bound=[10, 10],
      )
  
      new_rfo = rfo.RFO()
      new_rfo.compile(search_space)
  
      new_rfo._rellocation(
          search_space.agents[0], search_space.best_agent, square
      )
  
file_path: opytimizer/tests/opytimizer/optimizers/population/test_rfo.py
imports: import numpy
  import opytimizer.math.random
  from opytimizer.optimizers.population import rfo
  from opytimizer.spaces import search
label_desc: Use image node_id 4 for calling a global function with example usage: test_rfo_rellocation() and returns: np